A037001 Positions of the digit '2' in the decimal expansion of Pi (where positions 0, 1, 2,... refer to the digits 3, 1, 4,...).

6, 16, 21, 28, 33, 53, 63, 73, 76, 83, 89, 93, 102, 112, 114, 135, 136, 140, 149, 160, 165, 173, 185, 186, 203, 221, 229, 241, 244, 260, 275, 280, 289, 292, 298, 302, 326, 329, 333, 335, 337, 354, 374, 380, 406, 423, 435, 456, 462, 477, 479, 484, 485, 500

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Pi Digits.

OEIS index to sequences related to Pi.

Mathematica

Flatten @ Position[ RealDigits[Pi - 3, 10, 500][[1]], 2] (* Robert G. Wilson v, Mar 07 2011 *)

Crossrefs

Cf. A036974.

Cf. A053746 (= a(n) + 1: the same with different offset).

Cf. A000796: Decimal expansion (or digits) of Pi.

Cf. A035117 (first occurrence of at least n '1's), A050281 (n '2's), A050282, A050283, A050284, A050286, A050287, A048940 (n '9's).

Cf. A096755 (first occurrence of exactly n '1's), A096756, A096757, A096758, A096759, A096760, A096761, A096762, A096763 (exactly n '9's), A050279 (exactly n '0's).

Cf. A121280 = A068987 - 1: position of "123...n" in Pi's decimals.

Cf. A176341: first occurrence of n in Pi's digits.

Cf. A037000, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A037008.

Sequence in context: A335226 A104392 A291746 * A118139 A087446 A340497

Adjacent sequences: A036998 A036999 A037000 * A037002 A037003 A037004

Keyword

nonn,base

Author

Nicolau C. Saldanha (nicolau(AT)mat.puc-rio.br)

Status

approved